When choosing a motor and especially when rewinding the stator the question of winding material arises: copper or aluminum. The difference between them is significant. Let's look at it in order.
Copper winding
- Higher electrical conductivity - less loss and heating.
- Higher engine efficiency.
- Longer lasting, holds the load better.
- Minus - more expensive.
Aluminum winding
- Cheaper and lighter.
- Used in budget and mass-market engines.
- Disadvantages: higher resistance, more heating, lower efficiency, more difficult to solder connections.
Comparison
| Parameter | Copper | Aluminium |
|---|---|---|
| Efficiency | Higher | Lower |
| Less | More | |
| Reliability | Higher | Average |
| Price | Higher | Lower |
What choose when rewinding
When rewinding, we almost always recommend copper winding: it is more reliable, heats up less and lasts longer. Even if the original motor had aluminum winding, rewinding with copper increases efficiency and service life. The difference in price pays off in lower heat and energy savings, which is especially important when working around the clock.
Are you planning to rewind the stator? Elektromotors engineers in Tashkent will perform it with high-quality copper wire with a guarantee - contact us.